近几年推广的大豆窄行密植平作技术在友谊农场取得了良好的效果 ,为配合该技术的推广 ,我们本着少花钱多办事的原则 ,利用现有的 2 BJ 8W型垄作机进行了窄行 (每35 cm一对 )密植平播大豆的改装 ,具体改装方法如下。在 2 BJ 8W型垄作机的基础上 (对原机大体不动 ) ,增加 3个播种 In recent years, the promotion of narrow row of close planting of soybeans technology in Friendship Farm has achieved good results, in line with the promotion of the technology, in line with our principle of less expensive things, the use of the existing 2 BJ 8W ridge machine was Narrow row (35 cm per pair) close planting soybeans modified, the specific modification method is as follows. On the basis of 2 BJ 8W ridge machine (basically not moving on the original machine), add 3 sowing